Home / 458,624.90-688,046.70-221,772.80

Finding the Fourth Proportional to 458,624.90, 688,046.70 and 221,772.80

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Solution

The fourth proportional to 458,624.90, 688,046.70 and 221,772.80 is: 332,712.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,624.90 : 688,046.70 = 221,772.80 : x
  2. Step 2: Convert to fraction form
    458,624.90/688,046.70 = 221,772.80/x
  3. Step 3: Cross multiply
    458,624.90x = 688,046.70 × 221,772.80
  4. Step 4: Simplify right side
    458,624.90x = 152,590,043,189.76
  5. Step 5: Solve for x
    x = 152,590,043,189.76/458,624.90
  6. Step 6: Final answer
    x = 332,712.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.